Trying to export workflow summary as an xml… I get the belllow error (from the log).
Ideas on how to fix? Thanks
2020-12-26 19:44:48,262 : ERROR : main : : ExportWorkflowSummaryWizard : : : A problem occurred while writing workflow summary: (was java.lang.NullPointerException) (through reference chain: org.knime.core.util.workflowsummary.WorkflowSummaryGenerator$WorkflowSummary[“workflow”]->org.knime.core.util.workflowsummary.WorkflowSummaryGenerator$Workflow$1[“node”])
com.fasterxml.jackson.databind.JsonMappingException: (was java.lang.NullPointerException) (through reference chain: org.knime.core.util.workflowsummary.WorkflowSummaryGenerator$WorkflowSummary[“workflow”]->org.knime.core.util.workflowsummary.WorkflowSummaryGenerator$Workflow$1[“node”])
at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:397)
at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:356)
at com.fasterxml.jackson.databind.ser.std.StdSerializer.wrapAndThrow(StdSerializer.java:316)
at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializerBase.serializeFields(XmlBeanSerializerBase.java:219)
at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializer.serialize(XmlBeanSerializer.java:117)
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:728)
at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializerBase.serializeFields(XmlBeanSerializerBase.java:202)
at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializer.serialize(XmlBeanSerializer.java:117)
at com.fasterxml.jackson.dataformat.xml.ser.XmlSerializerProvider.serializeValue(XmlSerializerProvider.java:107)
at com.fasterxml.jackson.databind.ObjectMapper._configAndWriteValue(ObjectMapper.java:4374)
at com.fasterxml.jackson.databind.ObjectMapper.writeValue(ObjectMapper.java:3587)
at org.knime.core.util.workflowsummary.WorkflowSummaryGenerator.generate(WorkflowSummaryGenerator.java:176)
at org.knime.workbench.editor2.workflowsummaryexport.ExportWorkflowSummaryWizard.lambda$0(ExportWorkflowSummaryWizard.java:135)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)
Caused by: java.lang.NullPointerException
at java.util.Comparator.lambda$comparing$77a9974f$1(Comparator.java:469)
at java.util.Comparator.lambda$thenComparing$36697e65$1(Comparator.java:216)
at java.util.TimSort.countRunAndMakeAscending(TimSort.java:360)
at java.util.TimSort.sort(TimSort.java:220)
at java.util.Arrays.sort(Arrays.java:1512)
at java.util.ArrayList.sort(ArrayList.java:1462)
at java.util.stream.SortedOps$RefSortingSink.end(SortedOps.java:392)
at java.util.stream.Sink$ChainedReference.end(Sink.java:258)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:483)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:566)
at org.knime.core.util.workflowsummary.WorkflowSummaryGenerator$Workflow$1.getNodes(WorkflowSummaryGenerator.java:371)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.get(BeanPropertyWriter.java:917)
at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanPropertyWriter.serializeAsField(XmlBeanPropertyWriter.java:82)
at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializerBase.serializeFields(XmlBeanSerializerBase.java:202)
… 10 more